Seiko Cal. 6317 - 213

This Spring Drive model from 1988 features a 39mm PVD Black case. It features a Green dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-8d9b90526465]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1988

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